Uploaded January 2026 | Updated September 2026, 2 weeks ago
Join me as we descend beneath the streets to explore the history, mystery, and forgotten infrastructure of America's most fascinating underground cities.
Attributions: pastebin.com/zBjq3ZCW
If you enjoyed this video, subscribe to MapPack so you don’t miss future videos like this one. I post weekly geography deep dives that reveal how geography, nature, power, borders, and history shape the world we live in.
Want to learn more? Check out these playlists for similar content:
📌 50 Facts Series: Truths You Won’t Believe - youtube.com/playlist?list=PLxBZ8ukPsNBlbxf88UDgxfKl8GYfPInj0
📌 United States of America: Hidden Truths & Geography - youtube.com/playlist?list=PLxBZ8ukPsNBm3kf2sZ3KtMhc5nEFG30oC
📌 INSANE Facts!!! - youtube.com/playlist?list=PLxBZ8ukPsNBmhl-VA4Qu5Ddvzm5M2ecyV
📌 Military & Wars: Facts, History, Mysteries and Geography - youtube.com/playlist?list=PLxBZ8ukPsNBntro8rFimAf0ygMSKBvO4N
📌 Deadly Disasters & Mysterious Cases - youtube.com/playlist?list=PLxBZ8ukPsNBkFZDJe1andaAfxWwcajZbj
📌 Asia: Less Known Facts, History & Geography - youtube.com/playlist?list=PLxBZ8ukPsNBnTkTAFhKtDbFdwCPXzHVu0
📌 Europe: Surprising Facts, Hidden Truths & Geography - youtube.com/playlist?list=PLxBZ8ukPsNBlW7CxNThoPE20G0DJVt0aV
📌 Russia: Less Known Facts, Hidden Truths & Geography - youtube.com/playlist?list=PLxBZ8ukPsNBl2_ck00Dck9iLSkftl4Ldu
___________________________________________________________________________________
Chapters:
0:15 – The Forgotten Tunnels of Portland
1:23 – Beneath the Streets of Seattle
2:59 – The Hidden World of Sacramento
4:06 – Pennsylvania Town That Never Stopped Burning
5:30 – Secret Nightlife of Los Angeles
6:24 – Historic Rumors Under Old Boston
7:20 – Abandoned Rail Track 61 in New York
8:32 – Massive Subterranean Business Complex of Kansas City
9:27 – Secret Passages of Washington DC
10:32 – Mysterious Facility at Mount Weather
11:24 – The Secure Underground Pentagon Site
12:04 – Hidden Congressional Bunker at The Greenbrier
13:27 – Survival City Inside Cheyenne Mountain
14:29 – Fallout Shelter of the Grand Canyon
15:21 – Luxurious Mansion Hidden Below Las Vegas
16:11 – The Crypt of Civilization at Oglethorpe
Join me as we descend beneath the streets to explore the history, mystery, and forgotten infrastructure of America's most fascinating underground cities.
Attributions: pastebin.com/zBjq3ZCW
If you enjoyed this video, subscribe to MapPack so you don’t miss future videos like this one. I post weekly geography deep dives that reveal how geography, nature, power, borders, and history shape the world we live in.
Want to learn more? Check out these playlists for similar content:
📌 50 Facts Series: Truths You Won’t Believe - youtube.com/playlist?list=PLxBZ8ukPsNBlbxf88UDgxfKl8GYfPInj0
📌 United States of America: Hidden Truths & Geography - youtube.com/playlist?list=PLxBZ8ukPsNBm3kf2sZ3KtMhc5nEFG30oC
📌 INSANE Facts!!! - youtube.com/playlist?list=PLxBZ8ukPsNBmhl-VA4Qu5Ddvzm5M2ecyV
📌 Military & Wars: Facts, History, Mysteries and Geography - youtube.com/playlist?list=PLxBZ8ukPsNBntro8rFimAf0ygMSKBvO4N
📌 Deadly Disasters & Mysterious Cases - youtube.com/playlist?list=PLxBZ8ukPsNBkFZDJe1andaAfxWwcajZbj
📌 Asia: Less Known Facts, History & Geography - youtube.com/playlist?list=PLxBZ8ukPsNBnTkTAFhKtDbFdwCPXzHVu0
📌 Europe: Surprising Facts, Hidden Truths & Geography - youtube.com/playlist?list=PLxBZ8ukPsNBlW7CxNThoPE20G0DJVt0aV
📌 Russia: Less Known Facts, Hidden Truths & Geography - youtube.com/playlist?list=PLxBZ8ukPsNBl2_ck00Dck9iLSkftl4Ldu
___________________________________________________________________________________
Chapters:
0:15 – The Forgotten Tunnels of Portland
1:23 – Beneath the Streets of Seattle
2:59 – The Hidden World of Sacramento
4:06 – Pennsylvania Town That Never Stopped Burning
5:30 – Secret Nightlife of Los Angeles
6:24 – Historic Rumors Under Old Boston
7:20 – Abandoned Rail Track 61 in New York
8:32 – Massive Subterranean Business Complex of Kansas City
9:27 – Secret Passages of Washington DC
10:32 – Mysterious Facility at Mount Weather
11:24 – The Secure Underground Pentagon Site
12:04 – Hidden Congressional Bunker at The Greenbrier
13:27 – Survival City Inside Cheyenne Mountain
14:29 – Fallout Shelter of the Grand Canyon
15:21 – Luxurious Mansion Hidden Below Las Vegas
16:11 – The Crypt of Civilization at Oglethorpe
